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The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

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<h4><a name = "tag_000_007_1198">&nbsp;</a>NAME</h4><blockquote>
pthread_cancel - cancel execution of a thread
</blockquote><h4><a name = "tag_000_007_1199">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

#include &lt;<a href="pthread.h.html">pthread.h</a>&gt;

int pthread_cancel(pthread_t <i>thread</i>);
</code>
</pre>
</blockquote><h4><a name = "tag_000_007_1200">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>pthread_cancel()</i>
function requests that
<i>thread</i>
be canceled.
The target threads cancelability state and type
determines when the cancellation takes effect.
When the cancellation is acted on, the
cancellation cleanup handlers for
<i>thread</i>
are called.
When the last cancellation cleanup handler returns,
the thread-specific data destructor functions are called for
<i>thread</i>.
When the last destructor function returns,
<i>thread</i>
is terminated.
<p>
The cancellation processing in the target thread runs asynchronously
with respect to the calling thread returning from
<i>pthread_cancel()</i>.
</blockquote><h4><a name = "tag_000_007_1201">&nbsp;</a>RETURN VALUE</h4><blockquote>
If successful, the
<i>pthread_cancel()</i>
function returns zero.
Otherwise, an error number is returned to indicate the error.
</blockquote><h4><a name = "tag_000_007_1202">&nbsp;</a>ERRORS</h4><blockquote>
The 
<i>pthread_cancel()</i>
function may fail if:
<dl compact>
<dt>[ESRCH]<dd>
No thread could be found corresponding to that specified
by the given thread ID.
</dl>
<p>
The
<i>pthread_cancel()</i>
function will not return an error code of [EINTR].
</blockquote><h4><a name = "tag_000_007_1203">&nbsp;</a>EXAMPLES</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_007_1204">&nbsp;</a>APPLICATION USAGE</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_007_1205">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_007_1206">&nbsp;</a>SEE ALSO</h4><blockquote>
<i><a href="pthread_exit.html">pthread_exit()</a></i>,
<i><a href="pthread_join.html">pthread_join()</a></i>,
<i><a href="pthread_setcancelstate.html">pthread_setcancelstate()</a></i>,
<i><a href="pthread_cond_wait.html">pthread_cond_wait()</a></i>,
<i><a href="pthread_cond_timedwait.html">pthread_cond_timedwait()</a></i>,
<i><a href="pthread.h.html">&lt;pthread.h&gt;</a></i>.
</blockquote><h4>DERIVATION</h4><blockquote>
Derived from the POSIX Threads Extension (1003.1c-1995)
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UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
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